395655880 has 32 divisors (see below), whose sum is σ = 892020600. Its totient is φ = 157943296.

The previous prime is 395655877. The next prime is 395655881. The reversal of 395655880 is 88556593.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 291248356 + 104407524 = 17066^2 + 10218^2 .

It is not an unprimeable number, because it can be changed into a prime (395655881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10644 + ... + 30076.

Almost surely, 2^395655880 is an apocalyptic number.

It is an amenable number.

395655880 is an abundant number, since it is smaller than the sum of its proper divisors (496364720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395655880 is a wasteful number, since it uses less digits than its factorization.

395655880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19953 (or 19949 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 49.

The square root of 395655880 is about 19891.1005225955. The cubic root of 395655880 is about 734.1292726202.

The spelling of 395655880 in words is "three hundred ninety-five million, six hundred fifty-five thousand, eight hundred eighty".